Pioneer VSX-D510 Receiver "speaker dc protection" Questions

...repair. The protect circuit basically opens the speaker relay (and sometimes shuts down the unit) to prevent this DC voltage and current from getting to your speakers until the problem is

...further damage to the amplifier or speaker system. There can be other causes of why the unit's DC Protection relay is not engaging, but 90% of the issues, are related to amplifier ...

...speaker destroying DC from reaching the speakers. Connect a dc meter before the speaker relay(s) to isolate which channel if any, is bad. The protection ckt has a small value electrolytic cap ...

...DC voltage on a speaker will heat up the coil and eventually destroy the speaker. Dan Fortunately this old school has this protection, otherwise you would lose not only the output transistors, also ...

...speaker terminals so that no dc voltage can burn out the speakers. More than likely the power output transistor(s) are faulty. Look at the relay(s), determine the input and output connections. The ...

...and your speakers on fire! Recievers/amps have protection circuits to prevent pure DC voltage of the power supply from going unmodulated to your speaker(s) if the output transistors/ICs are

...speaker wires and they are all OK. vsx405 came error dc protection chacked all power transistors c2500 ,a1948 all ok i was disconnect dc detector wire then ok after few minutes one pair burned with ...

...speaker. If you do see dc then thats why the protections comming on so you dont blow out your speakers. If you dont have any equipment or dont have any electronics experience I advise then take the ...

...direction, and a negative voltage moving it in the opposite direction. DC voltages push the speaker cones in a single direction and hold it there until it fails. The bad news...it's repair shop

...speaker. If you do see dc then thats why the protections comming on so you dont blow out your speakers. If you dont have any equipment or dont have any electronics experience I would then take the ...